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expandable graphite powder Qingdao Henglide Graphite Co., Ltd is an integrated manufacture enterprise with the branches comprising one mining factory, two medium-carbon processing factories, one high-carbon processing factory with more than 10,000 tons of annual output of graphite. Our main products include high-carbon graphite, medium-carbon graphite, high-purity graphite, micro-powder graphite, graphite lubricant, high-purity graphite products, graphite powder for powder metallurgy (PM), graphite powder for battery and conducting coating, etc. After being treated momentarilyunder high temperature ,flake graphite becomes expandable graphite which can expand 100-400 times in volume and still remains the performances of natural flake graphite .Being vermicular ,loose and porous ,its heat-resistant range under the oxygen-isolated environment is from -200°C to 3000°C. Characterized bygood expandability and chemical stability under conditions of high temperature,high pressure and radiation ,it is widely usedfor the dynamic seal and the static sealin petroleum industry,chemical industry,electric industry,space industry,automobile industry,ship industry and instrument industry. Technical Index ofexpandable graphitewith ultra-low Sulphur SpecificationFixed Carbon AshVolatileExpansion RatioSulphur contentPH ValueMoistureParticle Size (Oversize)DL3290-99.9≤10≤10200-400≤0.034-6≤1.0≥80DL50200-350DL80150-250DL10080-150Technical Index of commenexpandable graphite SpecificationFixed Carbon AshVolatileExpansion RatioSulphur contentPH ValueMoisture Particle Size (Oversize)Before expandingAfter expandingDL3290-99.9≤10≤12200-400≤2.2≤15004-6≤1.0≥80DL50200-350DL80150-250DL100100-200